The Effect of Optimum Management of Lands on Reducing the Peak Discharge and Water Turbidity (Case Study: Manshad Watershed, Yazd Province, Iran)

Document Type : Research and Full Length Article

Authors

1 Yazd University

2 Yazd university Yazd, Iran

3 Professor, Faculty of Natural Resources, Yazd University, Yazd, Iran

Abstract

One of the main factors to decrease water quality in rivers is land use changes. This study was conducted to choose the best way for land use management in order to increase water quality related to the least turbidity, improving natural landscape quality and attracting ecotourism. So, the effect of land use changes on turbidity was investigated for 2 to 100-year periods using GIS and Hydrologic Engineering Center–Hydrologic Modeling System (HEC-HMS) model in 2012, in Manshad watershed, Yazd province, Iran. The Curve Number (CN) and land use planning model were variables in each simulation stage. After preparing the CN map, HEC-HMS model was calibrated for the observed rainfall-runoff events using CN method, Soil Conservation Service (SCS) model and lag time searching process. Finally, the best model was chosen among linear and non-linear sediment rating curves. The results showed that there was a lot of conformity between present land use and land use planning model. Terrace removing in land use planning model (as a scenario) increased flood volume (6.11%), peak discharge (6.23%) and turbidity in the peak discharge (11.02%) compared to the current land use. Therefore, according to the results, garden terracing in allowable slopes helps to manage water and soil so that there was almost no difference between two scenarios in terms of water turbidity in Watershed. It means that this watershed is managed on the basis of optimum land use.

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Akhzari, D., Eftekhari Ahandani, S., Attaeian, B., Ildoromi, A., 2013. Prediction of land use management scenarios impact on water erosion risk in Kashidar watershed, Azadshahr, Golestan province. Journal of Rangeland Science, 2 (3): 165-176.
Chappi, K., 1998. Investigating erosion type and its amount related to land use management and determining sediment contribution to improve land use. MSc Thesis of Watershed Management. Department of Natural Resources. Tarbiat Modarres University, 185 p. (In Persian)
Dastorani, M.T., Khodaparast, R., Talebi, A., Vafakhah, M., and Dashti, J., 2012. Determination of the ability of HEC-HMS model components in rainfall-runoff simulations. Research journal of Environmental Sciences, 5 (10): 790-797.
Fohrer, N., Steiner, N., and Moller, D. 2002. Multidisiplinary trade-off function for land use option in low Mountain ranges area: A modelling approach, proc. of the third international conference on water resources and environmental research. Dresden university of technology, 387-391.
Kafle, T.P., Hazarika, M.K., Karki, S., Shrestha, T.M., Sharma, R., and Samarakoon, A., 2007. Basin scale rainfall-runoff modeling for flood forecasts proceeding of the 5th annual Mekong flood forum. Hochi Minh city Vietnam, 17-18 May, 245-253.
Kar, K.K., Yang, S.K., and Lee, J.H., 2015. Assessing Unit Hydrograph Parameters and Peak Runoff Responses from Storm Rainfall Events: A Case Study in Hancheon Basin of Jeju Island. Journal of Environmental Science International, 24(4):437-447.
Khalighi, Sh., 2004. Investigating the effect of land use change and surface water characteristics (case study: Dozchay Baran watershed of West Azarbaijan). PhD thesis, Department of Natural Resources, Tehran University, 357 p. (In Persian)
Kothyari, U.C., Tiwari, A.K., and Singh, R., 1996. Prediction of sediment yield. Journal of hydraulic engineering, 1(14): 169- 176.
Makhdoom, M., 1999. Land use planning foundation. First edition, Tehran University press, No 2203. (In Persian)
Mahdavi, M., 2002. Applied hydrology. Vol. II, Tehran University press, 397 pp. (In Persian)
Melesse. A.M., and Shi, S.F., 2002. Spatially distributed storm runoff depth estimation using Landsat image and GIS. Computer and electronic in agriculture journal, 172-183.
Mohamadi, S., 2016. Studying the relationship between environmental factors, runoff characteristics and infiltration depth using rainfall simulator in Northwestern Rangelands of Iran. Journal of Rangeland Science, 3 (6): 205- 220.
Niehoff, D., Fritsch, U., and Bronestert, A., 2002. Land use impacts on storm-runoff generation: scenario of land use change and simulation of hydrological response in a meso-scale catchment in SW-Germany. Journal of hydrology, 267(1-2): 80-93.
Nikookar, M., 2009. Surveying the effect of watershed operation on flood and gradation of sub-watersheds using HEC-HMS model. Fifth National Conference of Iran watershed Engineering and Science, Gorgan University of Agricultural Sciences and Natural Resources. (In Persian)
Petrosillo, G., Zurlini, M., Corlian, E. ,Zaccarelli, N., and Dadamo, M., 2006. Tourist perception of recreational environment and management in a marine protected area. Landscape and urban planning, 79:29-3.
Roshani, R., 2003. Evaluating the effect of check dams on flood peaks to optimize the flood control measures (Kan case study in Iran). Interntional institute for geo information science and earth observation enschede, the Netherland, 43p.
Sadeghi, S.H.R., Tofighi, B., and Mahdavi, M., 2006. Sediment estimation modeling in Zarrinderakht watershed. Iranian Journal of Natural Resource. 58 (4): 759-767. (In Persian)
Shieh, Ch.L., Guh, Y.R., and Wang, S., 2007. The application of range of variability approach to the assessment of a checkdam on riverine habitat alteration. Environ Geo, 52 (1): 427-435.
Shokouhi, A.R., and Daneshvar, Sh., 2007. Investigating the effect of constructing postponed reservoirs in watersheds compared to river engineering activities to control flood in a city area. Journal of Iran water resources research, 3 (1): 80-83.
Soltani, M., 2010. Assessment of watershed management on flood using HEC-HMS model (case study: Manshad watershed). MSc thesis, Yazd University, 94 p. (In Persian)
Talaei, R., Jafari Ardakani, A., Azimi, F., Bayat, R., Parehkar, M., 2011. Influence of pasture and rainfed agriculture land uses on soil loss in Dojag-Chay subwatershed (Ardabil province-NW Iran). Journal of Rangeland Science, 2 (1): 153- 165.
Walling, D.E., and Webb, B.W., 1982. Sediment availability and the prediction of storm-period sediment yield. In: The proceedings of the exeter symposium, IAHS publications, 327-337.
Walling, D.E., and Hadely, R.F., 1984. Dissolve loade and their measurement in erosion and sediment yield: some method of measurement and modeling. GEO- Book. Norwich, England, 133- 157.
Wang, S., Shaozhong, K., Lu, Z., and Fusheng, L., 2008. Modeling hydrological response to different land use and climate change scenarios in the zamu river basin of northwest China. Journal Hydrological Processes, 14 (22): 2502-2510.
Zahedi, A., Mohammadi, M., and Berdi sheikh, V., 2011. Investigating land use change and its effect on urban watershed hydrology in Ziarat of Gorgan province. Seventh National Conference of Watershed Management Engineering and Science. (In Persian)
Yang, S.K., Kar, K.K. and Lee, J.H., 2015. Surface rainfall-runoff analysis using NRCS curve number and semi-distributed model in urban watershed of Jeju Island, Korea. H43I-1668. In 2015 AGU Fall Meeting, San Francisco, USA.
Volume 10, Issue 4
October 2020
Pages 434-446
  • Receive Date: 15 June 2019
  • Revise Date: 14 January 2021
  • Accept Date: 01 February 2021
  • First Publish Date: 01 February 2021